Samuel J. Baker. The Original Surveys of Cleveland. Journal of the Association of Engineering Societies (The Board of Managers of the Association of Engineering Societies). August 1884, 3: 217 [2016-05-30]. (原始内容存档于2015-10-17).
Samuel J. Baker. The Original Surveys of Cleveland. Journal of the Association of Engineering Societies (The Board of Managers of the Association of Engineering Societies). August 1884, 3: 217 [2016-05-30]. (原始内容存档于2015-10-17).
Master Plan Update 2. [2007-07-25]. (原始内容存档于2007-08-08). (MS Word doc). Cleveland Metropolitan School District Bond Accountability Commission. May 21, 2007. Retrieved on July 25, 2007.
Samuel J. Baker. The Original Surveys of Cleveland. Journal of the Association of Engineering Societies (The Board of Managers of the Association of Engineering Societies). August 1884, 3: 217 [2016-05-30]. (原始内容存档于2015-10-17).
Samuel J. Baker. The Original Surveys of Cleveland. Journal of the Association of Engineering Societies (The Board of Managers of the Association of Engineering Societies). August 1884, 3: 217 [2016-05-30]. (原始内容存档于2015-10-17).
Master Plan Update 2. [2007-07-25]. (原始内容存档于2007-08-08). (MS Word doc). Cleveland Metropolitan School District Bond Accountability Commission. May 21, 2007. Retrieved on July 25, 2007.